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Agronomy
Special Issues
Sustainable Development of Rice Cultivation and Soil Nutrient Management
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Sustainable Development of Rice Cultivation and Soil Nutrient Management

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Soil and Plant Nutrition".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 2276

Special Issue Editors

Prof. Dr. Huizhe Chen

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Guest Editor
State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 311400, China
Interests: rice; mechanization; cultivation technique; nutrient management; physiology
Special Issues, Collections and Topics in MDPI journals
Dr. Yikai Zhang

E-Mail Website
Guest Editor
State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
Interests: improvement of contaminated soils; aboitic stresses; physiogical mechanism
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Rice is one of the most important food crops, and its planting area and total yield occupy an important position in global food production. To increase the yield of rice, it is necessary to increase the application of chemical fertilizers and pesticides. However, obtaining a high yield leads to low nutrient utilization efficiency and a large amount of residues in the soil, which directly causes serious problems such as soil degradation in agricultural ecosystems. Under the pressure of increasing population and decreasing cultivated land area, how to reduce soil nutrient residues, improve fertilizer use efficiency, effectively slow down soil degradation, improve soil and increase crop yield has become an urgent problem to be solved worldwide.

This Special Issue aims to publish comprehensive reviews and original research articles that cover the latest and novel discoveries related to the soil management and the sustainability of rice cultivation system.

Prof. Dr. Huizhe Chen
Dr. Yikai Zhang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agronomy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • rice cultivation
  • sustainability
  • management mode
  • soil fertility
  • abiotic stress
  • crop productivity

Published Papers (2 papers)

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Research

14 pages, 1386 KiB  
Article
Variations in Soil Organic Carbon Fractions and Microbial Community in Rice Fields under an Integrated Cropping System
by Chao Wang, Qiannan Yang, Jing Chen, Chi Zhang and Kexue Liu
Agronomy 2024, 14(1), 81; https://doi.org/10.3390/agronomy14010081 - 28 Dec 2023
Viewed by 741
Abstract
Combining rice cultivation and aquaculture into an integrated cropping system is a management approach that enhances the sustainability of rice fields. However, how soil characteristics influence soil microbial community characteristics following implementation of such an integrated system, particularly in the waterlogged paddies of [...] Read more.
Combining rice cultivation and aquaculture into an integrated cropping system is a management approach that enhances the sustainability of rice fields. However, how soil characteristics influence soil microbial community characteristics following implementation of such an integrated system, particularly in the waterlogged paddies of the Pearl River Delta, is poorly understood. An integrated cropping system (rice–fish–duck integrated cropping system, RFD) and a rice–pepper rotation system (RPS) were compared using a conventional rice cropping system (CRS) as a reference. We used phospholipid-derived fatty acid (PLFA) analysis to assess soil microbial community structure and function and measured soil nutrient content and organic carbon fractions. Our results indicated that the soil nutrient content, organic carbon fractions, and C-hydrolyzing activities differed among the cropping systems. The RFD resulted in higher microbial PLFA concentrations and a lower ratio of Gram-positive to Gram-negative bacteria than CRS. Additionally, the integrated system reduced microbial nutrient stress by increasing soil pH. Further analysis revealed that active soil organic carbon significantly affected the soil microbial community. Thus, the RFD integrated cropping systems that alter the combined actions of pH and active organic carbon fractions can be used to improve soil microbial communities. Full article
(This article belongs to the Special Issue Sustainable Development of Rice Cultivation and Soil Nutrient Management)
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15 pages, 3425 KiB  
Article
Chloroplast Damage and Photosynthetic System Disorder Induced Chlorosis in the Leaves of Rice Seedlings under Excessive Biuret
by Peng Zhang, Yulin Chen, Yuping Zhang, Jing Xiang, Yaliang Wang, Zhigang Wang, Huizhe Chen and Yikai Zhang
Agronomy 2023, 13(8), 2052; https://doi.org/10.3390/agronomy13082052 - 02 Aug 2023
Viewed by 1211
Abstract
Excessive biuret in fertilizer causes leaf albinism in direct-seeded rice fields. This study aimed to provide a comprehensive understanding of the underlying physiology and molecular mechanisms of leaf chlorosis via biuret using morphophysiological and transcriptome analyses. The induction of biuret in albino rice [...] Read more.
Excessive biuret in fertilizer causes leaf albinism in direct-seeded rice fields. This study aimed to provide a comprehensive understanding of the underlying physiology and molecular mechanisms of leaf chlorosis via biuret using morphophysiological and transcriptome analyses. The induction of biuret in albino rice leaves was examined in a net-growing cultivation bed. Some key morphophysiological indices were measured including biuret content, blade ultrastructure, chlorophyll content, and chlorophyll fluorescence parameters. Candidate genes in the chlorotic leaves under biuret stress were also excavated using transcriptome analysis. Furthermore, physiological and biochemical analyses of the changes in enzyme activities and intermediate metabolite contents in relation to the phenotypic changes in the leaves were carried out. The chlorotic leaves of rice seedlings showed higher biuret accumulation, and the leaves suffered severe damage with higher malondialdehyde contents and low chlorophyll contents. Abnormal chloroplast ultrastructures and thylakoid membrane structure loss were observed in chlorotic leaves under biuret exposure. The related genes involved in the chloroplast development, photosynthesis (including antenna proteins), and carbon fixation pathways were significantly downregulated, which suggests that photosynthesis was destroyed in the chlorotic leaves of rice seedlings. Biuret disturbed the photosynthetic system in chloroplast thylakoid membranes by inhibiting chloroplast development, thereby promoting the formation of the chlorotic leaf phenotype in rice seedlings. Our results promote the understanding of the molecular mechanism of rice in response to biuret toxicity. Full article
(This article belongs to the Special Issue Sustainable Development of Rice Cultivation and Soil Nutrient Management)
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